Era
20th century
107
1900-1999
26
21st century
18
1945-
15
19th century
14
1937-
12
20e siècle
10
1991-2000
9
2001-2010
9
Bombardment, 1945
9
2000-2099
8
1937-1989
7
1868-
6
1898-1998
6
1900 - 1999
6
1971-1980
6
21e siècle
6
1944-
5
1945
5
1950-
5
500-1400
5
Allied occupation, 1945-1952
5
1858-1924
4
1868-1912
4
1872-1944
4
1879-1903
4
1882-1941
4
1910-1998
4
1937-2007
4
1945 (Bombardement)
4
1948-
4
Tokugawa period, 1600-1868
4
1826-1864
3
1842-1900
3
1886-1965
3
1912-1945
3
1928-1999
3
1933-
3
1939-1945
3
1941-
3
1989-
3
978?-
3
1756-1791
2
1800 - 1999
2
1800-1999
2
1868-1918
2
1873-1938
2
1876-1947
2
1878-1967
2
1884-1946
2
more ...